Harrow



(No Model.)

W. STRAIT.

HAREOW.

No. 457,095. Patented Aug. 4, 1891.

UNITED STATES,

PATENT OFFICE.

WILLIAM STRAIT, OF ELMIRA, NEV YORK.

HARROW.

SPECIFICATION forming part of Letters Patent No. 457,095, dated August 4, 1891.

Application filed November 25, 1890 To all whom it may concern.-

Be it known that I, WILLIAM STRAIT, a citizen of the United States, residing at Elmira, in the county of Chemung and State of New York, have invented certain new and useful Improvements in Harrows; andI do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings and to the letters and figures of reference marked thereon, which form a part of this specification.

Figure 1 is a side elevation of a coupling embodying my improvements, showing a harrow-tooth and portions of the barrow-frame. Fig. 2 is a perspective view of the tooth and frame coupling, and Fig. 3 is a plan View of the same with portions of the barrow-tooth and frame in position.

My invention relates to barrows.

The objects of my improvements are to produce a combined tooth-holder and harrowframe coupling, which acts also as a toothprotecting and tooth-fastening support.

To attain these objects my invention consists in a tooth-holder and frame-coupling having a tooth-seat provided with upwardlyextending flanges, a frame-bar seat disposed at an angle to the tooth-seat immediatelyv above-and contiguous to said tooth-seat, also having upwardly-projecting flanges, and a third seat for a frame-bar disposed at an angle to both the lower seats and being also immediately above and contiguous to the lower seats and having upwardly-projecting flanges, the whole tooth-holder and coupling being in one piece and open at the top, so that each frame-bar and the tooth may be lifted out vertically, and being closed at the bottom, so that a tooth-protecting and toothfastcning support is provided. This construction enables me to bring the tooth and framebars all into rigid contact with each other at each intersection in the barrow-frame.

In the drawings, A represents my improved tooth-holder and frame-bar coupling.

1 represents thehorizontal tooth-seat formed therein and opening upwardly.

2 are the side flanges of the tooth-seat, and 3 the rear or end flange thereof.

Serial No. 372,625. (No model.)

4 is a framebar seat disposed at an angle across the tooth-seat and immediately above and contiguous thereto.

5 are the side flanges of the frame-seat 4 and extend upwardly.

6 represents the second bar-frame seat arranged immediately above and contiguous to the lower frame and tooth seats and disposed at an angle to and across the said seats.

7 are side flanges of the frame-seat 6 and project upwardly.

8 is a bolt-hole passing centrally through the tooth-seat 1.

9 is a recessed or countersunk hole below the bolt-hole to protect the bolt-head.

The bottom of the holder and frame-coup ling A is formed into a shoe 10, which serves to protect the tooth and its fastening against wear and injury.

The holder and coupling A, while closed at the bottom, is entirely open at the top, so that the tooth and both frame-bars are in immediate contact with one another, and all may be raised up vertically out of their seats or placed within their seats in a similar manner.

B is a section of one of the barrow-frame bars. 0 is a similar portion of one of the intersectin g frame-bars.

D is the connecting and locking bolt for the tooth, coupling, and frame-bars at each intersection.

The tooth E of the harrow in this instance is non-adjustable and is held rigidly in its bearings. The tooth-seat is horizontal and opens laterally, so that the tooth may be inserted from the side of the holder and coupling A, while the opposite side of the holder tooth-seat is preferably closed at 3. This rear flange 3 is important, in that it acts as abasis for the flanges 5 and 7 of both the frame-bar seats and for the frame-seats 4 and 6.

It will be seen that a single hole is pierced through each of the frame-bars B and C and the holder A, and that but a single bolt D is necessary to rigidly secure all the parts A B 0 against vertical, longitudinal, or lateral movement. As a result of this construction, I am enabled to make an all-steel frame and spring-tooth harrow at a remarkably cheap cost, and at the same time put on the market a strong, well-built, and very effective working barrow, which is due almost entirely to the said seats being open at the one side and the cheapness, simplicity, and effectiveness communicating with one another, whereby of the tooth-holder and frame-coupling. the tooth and both frame-bars are inserted It will be understood that the coupling A into one side of the coupling and held in con- 25 5 is closed upon one side and open at the other, tact with each other.

that the tooth-seat and both frame-seats each 2. In a harrow, a tooth and frame coupling have flanges and adjoin each other, so that closed upon one side and open upon the other, all the seats open outwardly at one side, said coupling being provided with a toothwhereby the tooth and frame bars may be inseat open in front and having flanges at the 30 IO sorted into one side of the coupling and held sides and rear opening outward1y,anda framein contact with each other, Whether the coupseat opening outwardly adjoining the toothling be used one side up or the other. seat and having flanges, both seats being open I c1aim at the one side and communicating with each 1. In a harrow, a tooth and frame coupling other. 3 5

I5 closed upon one side and open upon the other, In testimony whereof I afflx my signature in said coupling being provided with a toothpresence of two witnesses. seat opening outwardly and having flanges, a

frame-seat opening outwardly and adjoining \VILLIAM S'IRAI'I. the tooth-seat and having flanges, and a sec- \Vitnesses: 2o ondframe-seat opening outwardly and adjoin- F. B. BROOK,

ing the first frame-seat and having flanges, all GEO. L. CLARK. 

